step&question

the step what I do is as the following:
1.apt-get dist-upgrade
2.reboot
3.git clone https://git.openstack.org/openstack/openstack-ansible \
    /opt/openstack-ansible
4.cd /opt/openstack-ansible
5.export ANSIBLE_ROLE_FETCH_MODE=git-clone
6.scripts/bootstrap-ansible.sh
7.scripts/bootstrap-aio.sh
8.scripts/run-playbooks.sh
the result of this step is:
"
"
The problem is when I run the command nova --help, it will fial.